Respect CC/CFLAGS/LDFLAGS on FreeBSD (#1246)

Reference:	https://svnweb.freebsd.org/ports/head/devel/lua-luarocks/files/patch-src_luarocks_core_cfg.lua?revision=477367&view=markup (based on)

1 files changed, 4 insertions, 2 deletions

diff --git a/src/luarocks/core/cfg.lua b/src/luarocks/core/cfg.lua
index b3ff6cb3..fada3048 100644
--- a/src/luarocks/core/cfg.lua
+++ b/src/luarocks/core/cfg.lua
@@ -486,8 +486,10 @@ local function make_defaults(lua_version, target_cpu, platforms, home)
    if platforms.freebsd then
       defaults.arch = "freebsd-"..target_cpu
       defaults.gcc_rpath = false
-      defaults.variables.CC = "cc"
-      defaults.variables.LD = "cc"
+      defaults.variables.CC = os.getenv("CC") or "cc"
+      defaults.variables.CFLAGS = os.getenv("CFLAGS") or defaults.variables.CFLAGS
+      defaults.variables.LD = defaults.variables.CC
+      defaults.variables.LIBFLAG = (os.getenv("LDFLAGS") or "").." -shared"
    end
 
    if platforms.openbsd then